Plural of bucketful; multiple amounts equal to what a bucket can hold.
Standard plural of 'bucketful,' formed by adding '-s' to the measurement noun, creating 'bucketfuls' (or alternatively 'bucketsful').
Interestingly, English allows two plural forms—'bucketfuls' (plural of the compound) and 'bucketsful' (plural bucket + full)—and both are correct, though 'bucketfuls' is more common in modern usage.
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